and this one
HKEY_CURRENT_USER\ControlPanel\Notifications\Sound s
the repeat over here refers to what ?

i have tried changing values but no effect on alarm duration
also what this option for
settings>Menu>all settings>clock&alarms>alarms>select the reminder icon
now here whats function of repeat ........
it never works ......

Below is a cab to enable all options for all listed reminders but leaves them unchecked 1073741824 and a cab to restore it back to HTC default values. Ideally, you want to uninstall the cab to restore it back to the original values. However sometimes the original values get overwritten with changes you might have made prior to installing the cab file to enable all reminder options.

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